Orlando clarke



O. CLARKE.

Steam Generator.

N0.'100,983. Patented M'arch 22.1870.

waited. fitatrs Qatari Qtflflire.

Letters Patent No. 100,983, dated March 22, 187 O.

SECTION AL STEAM- GENERATOR The Schedule referred to in these LettersPatent and making part of the same.

To all whom it may concern Be it known that I, ORLANDO CLARKE, ofRockford, in the county of Winnebago, and State of Illinois, haveinvented a new and useful Improvement in Steam-Generator andWater-Heater; and I do hereby declare that the following is a full,clear, and exact description thereof, whichv will enableothers skilledin the art to make and use the same, reference being had to theaccompanying drawings forming part of this specification.

This invention consists in forming the boiler in sections, securedtogether by means of flanges or ears and bolts, with the joints packed,and the sections provided with fire-fines and water and steam-passages,furnace, and fuel-magazines, construct-ed and arranged as hereinaftermore fully described.

In the accompanying plate of drawings- Figure 1 represents a verticalcentral section of the boiler, showing its general construction andarrangement of parts.

Figure 2 is a horizontal section through the line at x of fig. 1.

Figure 3 is a horizontal section through the line y y of fig. 1.

Similar letters of reference indicate corresponding parts.

In this example of my invention I show a generator composed of sixsections, with joints made steam-tight between them, and securedtogether by bolts or screws in any substantial manner; but I do notconfine myself to any particular number of sections, as it will beapparent thatby adding to or diminishing the number of the sections, thesize or capacity of the boiler may be varied, as may be desired.

The sections are cylindrical in form, with an outer shell, marked A,which is provided with ears or flanges, for bolting or securing themtogether.

B is the lower sectiouor ash-pit, composed of an outer shell, A, and aninner-easing, 0, having an annular water-space, D, around it, whichserves as-a receptacle for sediment.

E is an aperture, closed by a suitable door, for cleaning the pit B ofashes, admitting air for the support of combustion, and working thefire-grate, which is made to vibrate on a center, and also to revolve ordump on pivots.

The fire-box or furnace is approximately in form of sections; the twoupper sections (or the most of them) being designed as a reservoir forsteam.

J represents a door, which gives access to the firebox, to be used instarting and regulating the fire.

The fuel is introduced through the door-way K, above the fuel-magazineL, which is formed by the two middle sections.

m represents fire-fines through these two sections, through which theproducts of combustion pass.

n represents stays, by which the outer shells are secured to these finesm. I

The same system of staying the shells of the other sections is pursued.

0 represents the stays in the upper sections.

As seen in the cross-section, fig. 3, the fines m are nearly surroundedby water, thus presenting a very extended steam-generating ortire-surface.

P represents the fire-flue through the two upper sections of the boiler.This flue is formed mainly of the branches radiating from 'the opencentral space.

The steam (or steam and water) from the sections beneath passes upwardthrough the orifices I into the spaces It, between the branch fiues q,where the steam is brought in contact with the sides of the branches,and superheated or dried, ready to be discharged for use.

The method of packing the joints between the sections is representedbetween the two upper sections,

where the packing (in dark color) is seen confined in a groove in thefaces of the section.

By adding to the number of the sections above the fire-box, or bydiminishing their number, the capacity of the boiler may be increased ordiminished, as may be desired.

S is a cap, of conical form, on the upper section, for receiving thesmoke and incombustible gases, and discharging them into thesmoke-stack.

The boiler may (when circumstances admit) be surrounded by a jacket, ofany suitable material, forpreventing condensation.

The sections are designed to be cast, each in aseparate piece, with thefines, water-spaces, and communicating orifices entire.

. Each section is faced up in a lathe, with the packing-grooves turnedtherein, either in one or both faces forming the joints. As none of thejoints are exposed to the fire, a simple elastic packing, without theprotection of the groove, may perhaps be found sufficient.

It will thus be seen that a very large fire-surface is secured by thisarrangement of fines.

\Vhcre the generation of steam is not the particular object, the boilermay be used to the best advantage for heating water for domestic orother purposes.

It will be seen that the base-burning principle is secured by thisarrangement of the fire-box, magazine, and the fines m.

It will be seen that the gasket or .elastic packing, to form the jointsbetween the sections, will be provided with orifices to correspond withthe water-orifices n, so that each passage-way from one section toanother'will be separately packed, whether .the packing is confined in agroove or not.

Having thus described my invention,

-I claim as new and desire to secure by Letters 7 Patent- 1. The steamand water-sections, constructed with

